1. Rationalism: Rationalism is a form of philosophy which seeks to understand Scripture in light of reason. The extreme rationalist will reject scripture and hold to some other philosophy. There are rationalists in the “Born Again” camp as well. They do not reject all of scripture but when the Word gives them trouble they will reject it.
Example: During the Carter presidential campaign Mark Carter was ask how he felt about women preaching. He replied that he thought that it was all right. (After all, his sister was a charismatic evangelist.) The reporter mentioned that Paul seems to forbid it. Carter’s reply was that this was one place where he would disagree with Paul. That is rationalism — if you don’t like it you don’t do it.
This is where the homosexual “Christians” are, if they are indeed Christians. They have rejected the clear statements of Scripture and hold to what they want to hold to.
Fundamentalists even do the same thing when they don’t want to follow the Word. We find a rational reason to say no I don’t have to follow that. Example: “That is cultural” we don’t have to do that anymore. Example: “That was for the age of the law when Christ was still on the earth.” We don’t have to do that. Be very careful what you declare to be cultural, or what you declare to be for another dispensation.
2. Mysticism: Mysticism has had several outworkings in people’s lives. Some have beaten themselves, some have given up food, some have given up intimate relationships, and some have even sat long periods of time on top of flag poles. Mysticism is found in two forms, true and false. The false teaches that by working very hard to become holy, sooner or later you will become pious enough to come into a direct relationship with God. This relationship varies as to the how of it according to the philosophy followed. Some see it as a contact with God while others view it as contact with the Holy Spirit. With this close relationship the person has direct contact with, and revelation from, God.
True mysticism is supposed to be the enlightening which comes from the Holy Spirit to the believer. It is this connection with God that the Scriptures teach and none other.
3. Romanism: Romanism is also called “Traditionalism” by some, however it should be viewed as a separate category. Romanism places the Scripture on a very high level, yet they place other things on the same level, which is not proper. (Example: The words of Christ and the apostles which aren’t recorded in Scripture carry the same weight as Scripture.) What the Church says also carries the same weight as Scripture. The Pope as well, when he speaks officially, speaks with the authority of Scripture. (This is only at special times when he is commenting on doctrine and dogma.) This allows the Romanist hierarchy to accept or reject anything they want to, and their people will accept it as right and proper.
Frank Eberhardt, a missionary to Catholics in Philadelphia, who is a graduate of a Jesuit school in the East, stated that the normal priest gets about 49% of his information from Scripture and 51% from tradition. In the mass they use about 5% of Scripture in a three year cycle. This is the only Scripture read in mass.
In an article on devotions, Pope Paul II mentioned that he read a certain percentage from tradition, a percentage from Scripture and a percentage from a good Christian book.
4. Traditional Or Cultic: These people are similar to the Romanist, however are not Catholic. They have a similar idea. They elevate their own teachings to the level, or above the level of the Bible. Some in this category would be the Mormons, the Christian Scientists, and some of the cults that place their leaders teaching before, or equal to, the Scriptures.
5. Orthodoxy: The orthodox protestant position holds to certain things concerning the Scriptures.
a. The Bible is accepted as the infallible Word of God.
b. It is the ONLY rule for faith and practice.
c. All information, be it scientific or philosophical, must become subject to the Scriptures.
d. There is no super enlightenment, or informing, or any further revelation given. The Scripture is complete as it exists.
e. The Scriptures are the truth and no man, nor organization, has been given authority to expand that truth.
 by Stanley L. Derickson. DERICKSON’S NOTES ON THEOLOGY: A STUDY BOOK IN THEOLOGY.